Operating mechanism for the cloth-beams of looms



' (No Model.)

0. STRAUMANN.

OPERATING MECHANISM FOR'THE CLOTH BEAMS 0F L OMSi No. 400,879. PatentedApr. 2, 1889.

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' UNITED STATES PATENT OFFICE.

CHARLES STRAUMANN, OF JERSEY CITY, NEW JERSEY.

OPERATING MECHANISM FOR THE CLOTH- BEAMS OF LOOMS.

SPECIFICATION forming part of Letters Patent No. 400,879, dated April 2,1889. Application filed June 19, 1884. Renewed January 8, 1889. SerialNo. 295,805. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES STRAUMANN, of Jersey City, Hudson county,State of New Jersey, have invented certain new and useful'lmprovementsin Operating Mechanism for the Cloth-Beams of Looms, of which thefollowing is a specification.

The object of this invention is to furnish an improved operatingmechanism for the clothbeams of power-looms, which performs its workwith absolute regularity, and whereby the skipping of the pawls and itsconsequences shall be entirely prevented; and the invention consists ofoperating mechanism for the cloth-beam, in which the pawl andratchetwheel are operated by a cam-oscillated lever and rod, and inwhich the ratchet-wheel transmits its motion through a worm on its shaftto a worm-wheel attached to the cloth-beam, the shaft of which issupported in bearings of brackets attached to the frame of the loom.

In the accompanying drawings, Figure 1 represents a side elevation of apower-loom with my improved operating mechanism for the cloth-beam. Fig.2 is a side elevation, and Fig. 3 a front elevation, of the operatingmechanism on a larger scale; and Fig. 4 is a detail view.

Similar letters of reference indicate corresponding parts.

A in the drawings represents a supportingbracket, the slotted ends a aof which are attached by clamp-screws a to the front upright of theloom-frame. A slotted guidepiece, A, is attached to the supportingbracket A and projects laterally therefrom. The guide-piece A serves toguide an oscillating lever, B, to which a spring-actuated pawl, 12, ispivoted. The inner end of the oscillating lever B swings loosely on thehorizontal shaft 0, turning in bearings in laterally-projecting ears dof the bracket A. A hand-crank, C, at the outer end of the shaft Cserves to turn the same so as to wind the cloth on the beam D or unwindit therefrom. The shaft of the beam D is supported at one end inbearings at the lower part of the bracket A, and at the other end inbracket-bearings of the loom-frame. I

To the shaft 0 is keyed, adjoining the lever B, a ratchet-wheel, b,which is engaged by the pawl 12. The oscillating lever B can be adjustedhigher or lower by means of a setscrew, 12 which set-screw serves toregulate the stroke of the lever B. A rod, E, engages the oscillatinglever Bby a projecting shoulder, b and is moved to lift the same by theaction of a rotating cam, E, which is operated by transmittinggear-wheels g g from the driving-shaft S of the loom, as shown in Fig.1, said cam operating an oscillating lever, E to which is pivoted therod E.

A worm, F, is keyed to the shaft 0, between the ears cl d. It mesheswith a worm-wheel, F, secured to the end of the cloth-beam. At eachupward motion of the rod E the oscillating lever B is moved and theratchetrwheel I) turned for the distance of one or more teeth by thepawl 1), according to the oscillation of the lever B. This imparts anintermittent axial motion to the shaft 0 and causes the .turning of theworm F and worm-wheel F,

and thereby the turning of the cloth-beam D. The strain of thewarp-threads on the clothbeam D is transmitted by the worm-wheel F tothe worm F, which latter acts always as a stop for the cloth-beam, sothat any accidental skipping of the teeth of the ratchet-wheel b by thepawl I) would not exert any injurious influence upon the transmittingworm-gear. The exact degree of axial motion to be imparted to thecloth-beam is regulated by the adjusting-screw 19 which defines theextent of motion of the oscillating lever B, while the stroke of the rodE defines the upward motion of the lever B.

The shaft D of the cloth-beam D at one end is supported in thebearing-block e, which is guided in an opening of the bracket-plate Aand supported by a pin or lug, e, of an auxiliary face-plate, A that isattached to the bracket-plate A, as shown in Figs. 2 and 3. The shaft Dextends through a transverse slot, 6 of the auxiliary plate A whichslot, together with the pin 6 of the plate A and the journal-bearing 6,holds the shaft D reliably in position. The face-plate A is pivoted atits lower end, at a to the bracket-plate A, and can be swung on saidpivot to either side after the fastening-screw a at the upper end isloosened, so that the bearing 6 and the shaft D of the cloth-beam areadjusted higher or lower by pin e and the slot 6 and thereby the propermeshing of the worm-wheel F with the worm F produced.

The advantages of my improved operating mechanism are that it is simplerthan the attachments heretofore in use; that it is reliable inoperation, as by the worm-gear no pressure is exerted on theratchet-wheel; that a steady and uniform turning motion is exerted onthe elotlrbeani, and that the pawl can be thrown out of engagement atany momenteven while the loom is runningwithout the least danger ofinjury to the fabric on the 100111 or the attendant weaver.

Having thus (3 escribed my invention, I claim as new and desire tosecure by Letters Patent- 1. The combination of the driving'shaft S, acam, E, intermediate gear-wheels, an oscillating lever-rod, E avertically-reciproeating rod, E, operated by said cam and having a heelor shoulder, If, an oscillating lever, B, a supportirig-bracket, A,having a slotted guidepiece, A, and set-screw b for the lever B, a

pawl, b, on the oscillating lever B, a shaft, (I, having aratchet-wheel, Z), and worm 1*, and a cloth -beam, D, having a wormwheel, F, substantially as set forth.

2. The combination of a supporting bracketplate, A, having aguide-opening, an auxiliary face-plate, A pivoted to the bracket-plateA, said face-plate having a transverse slot, Q and a projecting lug, e,a cloth-beam, I), having a shaft, D, a journal-bearing, e, for saidshaft guided in said opening and supported by the lug a, and afastening-screw, (1/ for removably retaining said auxiliary plate inposition, substantially as set forth.

In testimony that I claim the foregoing as my invention Ihave signed myname in presence of two subscribing witnesses.

CHARLES S'IRA'U MANN. \Vitnesses:

PAUL GoErEL, SIDNEY MANN.

